Winding is a procedure to take up and package material in roll
form, for more efficient handling or in preparation for a
subsequent operation. In a typical industrial application, a winder
is employed to roll up a continuous or limited length of material
such as wire, paper, film, metal, or textiles. The winder and
finished roll are referred to by different names in different
industries.

Industry

Winder Name

Roll Name

Paper, Textile, Film

Winder

Roll

Wire

Takeup, Reeler

Reel

Wire

Spooler

Spool

Metal

Coiler

Coil

Textile

Beamer

Beam

Wound materials may be stretchable or non-stretchable. Winding of
stretchable materials is more complex and critical than
non-stretchable materials.

Materials typically wound include:

· Wire Cable

· Foils

· Textile Materials

· Paper

· Metals

· Glass Fiber Materials

· Business Forms

· Textile

· Plastic Film

Generally, plastic film is extensible (stretchable) material, most
other materials can be considered non-extensible. Rolls may be
wound by applying drive torque at its center or its surface. As a
result the two major categories of winders are:

· Center Winders

· Surface Winders

Winder drives are designed to improve the wound package and
eliminate material breakage.

Power range of V8 VFD

Voltage: 3 phase 380VAC (304VAC – 460VAC)

Power: 0.4kw/0.5HP – 400kw/535HP

Specification of V8 VFD

Item

Specification

Input frequency

50/60Hz

Output frequency

0-600Hz

Overload current

150% rated current 1min., 180% 2 sec.

Control mode

sensor-less vector control(SVC), V/F control

Starting torque

150% 1Hz (SVC 150% 0.5Hz)

Control precision

±0.5%

Given Frequency Resolution

Digital given: 0.01Hz, analog given: 0.05Hz

Running Mode

Keyboard, control terminal, RS485

Output Voltage self-adjustment

When AVR function is enabled, the input voltage changes, while the
output voltage almost remains unchanged

A variable-frequency drive (VFD) is a system for controlling the
rotational speed of an alternating current (AC) electric motor by
controlling the frequency of the electrical power supplied to the
motor. A variable frequency drive is a specific type of
adjustable-speed drive. Variable-frequency drives are also known as
adjustable-frequency drives (AFD), variable-speed drives (VSD), AC
drives, microdrives or inverter drives. Since the voltage is varied
along with frequency, these are sometimes also called VVVF
(variable voltage variable frequency) drives.